基于新型索单元模型理论的索网结构初始形态分析及静力分析

Initial Configuration Analysis and Static Analysis of Cable Net Structure Based on Cable Finite Element Model

针对大型空间结构索网分析中两个核心问题——索网结构的初始形态分析和受力分析,本文基于文献[1]提出的四节点等参曲线索单元模型理论,进行索网的初始形态分析和静力分析,编制相应的计算程序进行了实例计算,并和大型通用有限元分析软件ANSYS计算结果进行对比,证明了该理论的正确性和适用性,为这种新型的等参元模型理论在索网结构全过程分析应用中的推广提供了有力的依据。

Based on the four-node isoparametric cable finite element model proposed in the reference literature [1], this article does the form finding analysis and static analysis of cable net, which are the two core items of the analysis of the large-scale spaeial structure-cable net structure. In this article, the finite element programs are compiled and the computing results are compared with the results calculated by the finite element analysis software ANSYS. By this, the article proves the reliability and applicability of the finite element model and supplies the theory with proofs of its applicability in the overall analysis of the cable net structure.